collects as the flood waters with pakistan, billions at risk from colorado and anger at the slow delivery of aid is spilling over. >> [shouting] >> 1 million public-sector workers in south africa's struggle -- have struck over pay. now police say they will join in. googles says that people will have to change their identity to escape their online past. welcome to "bbc world news," broadcast to our viewers on pbs in america, also around the globe. my name is mike embley. coming up later for you -- who killed off the woolly mammoth? new research suggests it was not stone age hunters. and the house where ringo lived.

the battle to preserve the birthplace of a deal looks to be lost. -- beatle looks to be lost. hello to you. the latest from pakistan is that aid agencies are reporting a tenfold increase in deaths from cholera and dehydration. there are new flood waters in the south. for the north, levels are dropping, but leaving behind it devastated houses and farmland. it seems that the floods are growing. from there, orla guerin reports. >> on the ground to show solidarity and to drum up support, the international development secretary today, a meeting flood victims and hearing their stories, and reassuring donors their money will not go directly to the

government. >> we can have absolute confidence, british taxpayers, those who donate so generously, can have confidence that the money will come here, where it is needed. >> this is what happens when a does not come. -- aid does not come. young lives at risk. young survivors suspected of having cholera contracted from dirty water. new arrivals every few minutes. at this emergency room, it is overcrowded, and the staff is overwhelmed. >> we need more time to fix. >> patients are crammed in wherever they can fit. they do not wait for lab tests here. if it looks like cholera, they

assume it is. delays can kill. the wards are filling up so fast, the hospital is running out of bed. all these patients are being treated for cholera. doctors say they have seen it 10 times as many suspected cases as last year, and this is exactly what international health experts had been fearing. and and watches over his 7-year- old son. cholera has already robbed him of his oldest boy who died two days ago. >> he was sweeter than sugar. he was a very happy boy. his loss is unbearable. >> all this suffering is for the wants of clean water. health experts are begging for help now, both for more young lives are threatened.

orla guerin, bbc news. >> as people grow increasingly desperate, and you can see why, and there at the slow delivery of aid is growing -- anger at the slow delivery of aid is growing. one motorway was blocked for hours. the main motorway is still blocked by demonstrations that left two people dead and a policeman injured. lyse doucet has been travelling on these roads and she sent this report. >> we stopped on this motorway. the road is blocked by burning tires. the protesters have not had electricity for three days. what caused you to come out today? >> we are coming here for light. ok? 110, 120. and also, you know, it is very hard here. a very hard here.

too much problems. and also, they are multiplying. they are not certified. >> you are certified? >> we have problems. [shouting] they are busy. you cannot reach them on the telephone. >> it is not fair. we have a right to protest. it is our legal right. >> what are they firing? will who are the firing over there? >> of woman. >> the police -- >> this is our right. because our children are dying. every single home is lost. we do not want to damage anything. we are peaceful.

i paid 10,000. >> lyse doucet reporting. from china, most of the more than 60 people missing since a landslide have been found and rescued. they had been trapped in their homes by the rushing mud. landslides and floods have killed more than 650 people in china over the last few months. we have this. >> at the center of your screen, a television reporter coming part of the story she is trying -- becoming part of the story she is trying to tell. for several weeks, china has been hit with unusually heavy summer rains. the downpour has caused landslides, killing more than 1500 people. rescuers are trying to evacuate homes and find conditions

extremely treacherous. as they look for those trapped, hundreds of soldiers wear vests to prevent over-of flooding. hear, they are trying to deepen the riverbed. in the midst of all this mud, what was of village. so far, this disaster has affected 350 million people. bbc news. >> officials in india are saying at least 18 children were killed when their school collapse. there has been heavy monsoon rains in the northern city. rescuers are searching for about a dozen pupils and two teachers believed buried in the wreckage. the indian army is saying three of its peacekeeping soldiers have been hacked to death and the eastern democratic

republican -- republic of congo. regional officials are blaming a local militia. in south africa, schools have been closed and many hospitals badly hit as more than 1 million public sector workers were again called out on a strike over pay. the unions are seeking a rise of 6.8%. we have this. >> striking in south africa is a well rehearsed ritual. patients at this hospital were left without care. health-care workers with outside, stopping in doctors from entering. 1 million public sector employees called out on strike. >> basically that is all i can see. i cannot say more than that. >> schools have been worst hit.

pupils were locked out of classrooms after their teachers rejected the government's offer of a 7% wage increase. >> the minister for public activities -- we are now reaching the downturn now. >> it is a time of glory for parents. teachers say they're striking is indefinite. this is a time when pupils are supposed to be taking their final exams next week. >> it is unacceptable. i would like them, the government to go along with their demands, so our students can go to school. >> the south african government says they simply do not have the money to pay more and they are ready to push ahead with enforcing dart 7% offered. for president jacob zuma, it is

an uncomfortable situation facing off against people who have been the loyal -- his loyal supporters. >> colombia has declared unconstitutional a rule that allowed american forces to use colombia basis. the world signed last year get american troops 10 years access to seven bases, but it has been criticized. mexican security forces have discovered the body of america near a northern city, just days after being abducted by drugs and his men -- drugs hit men. he is probably a target for helping to clean up santiago's police. ever since the first fossils of woolly mammoths were discovered, they have seized the public imagination. prehistoric humans have taken the rap for hunting them to

extinction. new research suggests what actually killed the woolly mammoth is climate change. our environment correspondent has this. >> this is the popular view of how the bling mammoth died out. hunted to extinction by early humans, it made scans from at hands. but it turns out that thousands of years ago, their demise was due to a shift in the earth's climate. at the height of the last ice age, the woolly mammoth was commonplace across many parts of europe, including britain. then, as the world warmed, numbers began to dwindle and it retreated to northern siberia. for the -- 4000 years ago, it died out completely. but why? and new study shows that as the world war and at the height of the last ice age, -- as the

world warmed, at the height of the last ice age, grasslands on which the mammoth depended disappeared. >> we have mammoth bones as evidence. what this shows is the things that drove the mammoths to the brink of extinction was the loss of habitat and loss of grazing. >> so climate change, and the consequent lack of food, rather than humans, led to the demise of the woolly mammoth. bbc news. >> good to have you with us on "bbc world news." do stay, if you can. still to come -- vietnam's internet police. can they maintain the online boom? first though, is 100 days since david cameron injured downing street as prime minister with nick clegg as his deputy.

they are still promising new policies and tough choices. but are the old divisions resurfacing? >> tricky, it may be, but the members of the coalition appeared to be happy working together. the conservative chancellor and the live dam deputy minister -- lib dem deputy minister share convictions. but after a tough budget and plans to squeeze spending harder in coming months, there have been fears that the government has come on too strong with cuts. the government is answering public fears directly. today, nick clegg will explain how the government wants to make it easier for people from any background to follow their ambition. but many liberal democrats have not been comfortable with other elements of the coalition plan.

the deputy is calling for back benchers. the parliamentary parties of both parties in coalition have to be able to sign, not because they love everything, because -- but because otherwise you cannot get through a majority. that is a matter of fact of politics. >> the coalition says the public would be wrong to believe this government is all about the deficit, closing the gap between spending and what taxpayers coughed up. but they say that the action will define the first coalition in decades. bbc news, westminster. >> the latest headlines for you this hour on "bbc world news." new flood warnings for pakistan

as protestors are blocking roads, showing their discontent with how long aid is taking to reach them. over 1 million public sector workers have been on strike in south africa. schools and hospitals have been worst hit. police look likely to join them. the internet giant google has faced criticism over the way it handles online security. one of its top executives has decided to warn us about how much of ourselves we're giving away online. they want to change their names and identity in the future, according to him, to escape their on my past. joining us and our technology reporter. this is a bit rich coming from the country that -- from the company that owns youtube. >> they have invested very heavily into the internet working. certainly in recent months, they have launched their own service, google buzz, and they have been

buying companies that provide services of this kind. it could be a pre-emptive strike, a warning that we are going to keep going, and we do not want to go back and say you have to think about what you are putting on the line. >> so google is protecting itself? >> it makes sense for them to say, we told you if you put something online it might come back to bite you. the thing is that young people want to change their names because they are embarrassed of their parents. it is quite unnatural projection -- progression. >> and just briefly, it is the case that once it is out there, you can never get it back? >> pecan hide it. the internet is so vast. it is impossible to get rid of everything. there are companies that will clean up your profile for you. you go to them, and that will give you a nice clean new profile. >> and they will promote good stuff about you?

>> that is exactly right. they will tell everybody how marvelous you are and had the bad stuff. >> vietnam is one of the fastest-growing economies in asia, spurred by a policy of rapid